TABLE 2

Relative growth rates on solid medium

Relevant genotypeGrowth rate (% wild type)a
StrainVMbVM + sorbitolcVM + KClcVM + NaClc
17-7-7Wild type100100100100
21-5-1 gna-1 Q204L 77.4 ± 2.087.8 ± 4.676.8 ± 1.377.4 ± 1.5
15-9-2 gna-1 R178C 83.8 ± 2.193.2 ± 4.491.2 ± 2.392.3 ± 2.9
R-10-2 Δ gna-1 53.3 ± 0.542.3 ± 3.130.0 ± 3.932.0 ± 2.3
  • a Apical extension rates were determined for the indicated strains by measuring colony diameters at various times. Wild-type growth rates (mm/hr) were 5.13 (VM), 2.08 (VM + Sorbitol, 2.92 (VM + KCl), and 2.70 (VM + NaCl).

  • b Values are mean ± standard error of the mean (SEM) from two independent experiments.

  • c Values are mean ± SEM from three independent experiments. The final concentrations of sorbitol, KCl, and NaCl were 1.5 m, 0.75 m, and 0.75 m, respectively.